Where can I find correct information on RAM upgrade?

I recently bought a laptop, a Lenovo S145-15IWL 81MV00FFUS and I have scoured the internet trying to find out what the correct maximum amount of supported RAM is for this system. Crucial says max is 20GB, but that's the only one saying that. All the other information I have found says 8GB, while others say 12GB. Some sites say that this has 4GB soldered to the motherboard and cannot be upgraded at all. Others say there is 4GB soldered and one extra slot. When I look at the RAM in the task manager it says 4GB (1 of 1 used) I am thinking this means I actually only have one slot for ram, and it isn't soldered? Any computer genius here able to guide me in the right direction?

Update:

Apparently none of you know anything. There is even a pic and people still saying soldered ram. There's no ram soldered. I've got this figured out. Nobody will get best answer. Especially not some dumbass troll mad cause he thinks he can sue for $600million over someone making him pay a dollar more for a bottle of water. Get a life Anthony and Anonymous. Go hover over your daddy loins waiting to be poked in the kisser with it some more. 

5 Answers

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  • dik b
    Lv 6
    4 months ago
    Favourite answer

    I found the service manual in .PDF format. It shows your specific model 'should' take an extra 8 GB of either DDR4 2133 or DDR4 2400 RAM. The process to add it 'SHOULD' be reasonably doable for the average user. YMMV. I include the link to the manual below.

    https://download.lenovo.com/consumer/mobiles_pub/s...

  • Anonymous
    4 months ago

    Lmaoooo you can’t find an answer to such a stupid question ! Damn what’s the point of answering this if you can’t even find such a simple answer! Your mother and father raised a moron of a child. You should go and educate yourself and rely upon the great knowledge we people here on the great interwebs provide! Moron. :)

  • 4 months ago

    Did you really look that hard, I found this in a few seconds.

    Max Supported Size

    12 GB

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  • Barry
    Lv 5
    4 months ago

    Crucial have been around for a long time. That's the advice I would trust.

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